[AINews] Claude Opus 5.5, the new default model for AINews — and everybody cuts prices 40-50%

Anthropic has launched Claude Opus 5.5, the first model in the Claude 5.5 family, performing similarly to Fable 5.1 but at a 40% lower cost. The new model has garnered 17 million views since its launch, indicating significant market interest. Opus 5.5 features writing improvements, placing the most important information upfront and adhering to user-defined writing rules, making long sessions easier to follow. Tests have shown it outperforming previous models on several benchmarks.